133515163 has 2 divisors, whose sum is σ = 133515164. Its totient is φ = 133515162.

The previous prime is 133515157. The next prime is 133515241. The reversal of 133515163 is 361515331.

It is a weak prime.

It is an emirp because it is prime and its reverse (361515331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133515163 - 2²¹ = 131418011 is a prime.

It is not a weakly prime, because it can be changed into another prime (133515143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66757581 + 66757582.

It is an arithmetic number, because the mean of its divisors is an integer number (66757582).

Almost surely, 2^133515163 is an apocalyptic number.

133515163 is a deficient number, since it is larger than the sum of its proper divisors (1).

133515163 is an equidigital number, since it uses as much as digits as its factorization.

133515163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 28.

The square root of 133515163 is about 11554.8761568439. The cubic root of 133515163 is about 511.1050790911.

The spelling of 133515163 in words is "one hundred thirty-three million, five hundred fifteen thousand, one hundred sixty-three".